Shelby goes whale-watching aboard the Nantucket Nell on the very day money disappears from the sight-seeing company's safe. Soon, the prime suspect comes out of hiding and teams up with Shelby to prove his innocence -- and surface with the truth.

Long Synopsis:

Shelby goes whale-watching aboard the Nantucket Nell on the very day money disappears from the sight-seeing company's safe. Soon, the prime suspect comes out of hiding and teams up with Shelby to prove his innocence -- and surface with the truth.